Home / 39,833.70-54,969.66-21,928.56

Finding the Fourth Proportional to 39,833.70, 54,969.66 and 21,928.56

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Solution

The fourth proportional to 39,833.70, 54,969.66 and 21,928.56 is: 30,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,833.70 : 54,969.66 = 21,928.56 : x
  2. Step 2: Convert to fraction form
    39,833.70/54,969.66 = 21,928.56/x
  3. Step 3: Cross multiply
    39,833.70x = 54,969.66 × 21,928.56
  4. Step 4: Simplify right side
    39,833.70x = 1,205,405,487.49
  5. Step 5: Solve for x
    x = 1,205,405,487.49/39,833.70
  6. Step 6: Final answer
    x = 30,260.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.